Oil-burner.



J. DITSON.

OIL BU-RNER.

. APPLICATION FILED JAN 13, I913- L1511 Patented Sept. 21, 1915.

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JESSE DI'ISON, 01? LITTLETON, COLORADO, ASSIGNOR TO THE J. GEO. LEYNER ENGINEERING WORKS COMPANY, OF LITTLETON, COLORADO, A CORPORATION OF COLORADO.

OIL-BURNER.

Specification of Letters Patent.

Patented Sept. 21, 1915.

/ To all whom it may concern:

Be it known that I, Jnssn DITSON, a citizen of the United States, residing at Littleton, in the county of Arapahoe and State of Colorado, have invented a certain new and useful Improvement in Oil Burners, of which the following is a specification.

This invention relates to burners for oil and similar fluid fuel and has for its object the construction of a burner of this type in which the consumption of compressed air will be reduced and the atomization and combustion of the oil carried out with great efiiciency.

With this object in view I have devised a burner, a practical embodiment of which is shown in the accompanying drawing, which shows a longitudinal section through the burner, partly in elevation.

The burner as shown comprises a discharge nozzle 1 the walls of which diverge for a considerable portion of its length, to-

- ward the point of discharge. The back end V, cook 12.

of the discharge nozzle 1 is adjustably threaded into a compressed air chamber casing 2 of generally spherical conformation, into the lower side of which is secured a compressed air supply pipe 3 which is controlled by a valve 4. Secured in the wall of the chamber 2 opposite the discharge nozzle pipe 5 the forward'portion of which 6 passes through the chamber 2 and projects slightly into the back end of the discharge nozzle 1. The edge of the opening in the back end of the discharge nozzle 1 is beveled outwardly and the forward part of the pipe 5 has a similar bevel on its outer surface. These two beveled surfaces are slightly separated, the

amount of separation being determined by adjusting the threaded nozzle 1, the result being an inclined annular orifice 7 of variable width directed from the chamber 2 into the discharge nozzle 1. The atmospheric air inlet pipe extends for some distance back of the chamber 2 and is provided on its lower side with an oil inlet opening 8 through which oil is supplied by a pipe 9 controlled by valve 10. The rear end of the pipe 5 is normally open to the atmosphere through an aperture 11 but may be closed by a stop through which compressed air is In operation when the valve 4 is opened compressed air will pass into the chamber 2 and through the orifice 7 into the discharge nozzle 1' passing out through the front end thereof with considerable force. When the stop cook 12 is open the passage of the compressed air through the nozzle 1 will draw or entrain a considerable volume of atmospheric air through the pipe 5 and carry it through the nozzle 1. When the oil valve 10 is opened oil will pass into the tube 5 through the opening 8 and be partially atomized and carried along through the pipe 5 by the current of air passing therethrough. When it reaches the forward end of the pipe 5 the compressed air flowing through the orifice 7 will still further atomize it so that it will be thoroughly miXed with air and ready for complete combustion at the discharge end of the nozzle 1. By this construction therefore a large quantity of atmospheric air will be utilized in promoting combustion and by the successive atomization and mixture of the oil with the atmospheric air and then with the compressed air an intimate commingling of air and oil is obtained which causes practically complete combustion and hence a high degree of efiiciency.

It is to be understood that the present showing and description discloses only one specified modification of my invention and other forms and modifications are included in the spirit and scope of the invention as expressed in the claim.

What I claim is:

In an oil burner, a casing having a chamber therein, a pipe for admitting compressed air to said chamber, an air conveying pipe projecting into said chamber, the outer end "of said pipe being open to the atmosphere, an oil inlet pipe leading into the lower side of said air conveying pipe, and a diverging nozzle adjustably secured in said casing, the inner end of said nozzle being slightly separated from the inner end of said air conveying pipe. 7

In testimony whereof, I have hereunto set my hand.

JESSE DITSON.

Witnesses:

" WM. RUPERT ELLIOTT,

FRANK H. BRINKHAUS. 

